MThd MTrk P Piano X Y Q] y 0 @ [ ] ! ?P ? ?P ? `?P ? ?PG? DP ?PcD ? DP ?PcD ? BP_B FP APGF DPKA %APWD A CP ?PcC ? CP ?PcC ? mKPcK KP CPqC CPkK C KP DPwD CPqC K IP FPcI F HP DPoH D DP ?PcD ? AP =PcA = FP APcF A CP ?P_? =PG= C DP